Clutch surface treatment

Henk_Brough

The engine so far is ready ( see photo's )
Now clutch and gearbox must be done.
The gearbox is o.k. so thats no problem.
The corks in clutchplate looks also o.k.
Under the car is now a dry clutch but as said by many others that is indeed not a real success.
I go back to the original clutch.
The question is now : the surfase from special the flywheel looks very glacy.
I asked friends. Some of them say take sandpaper from grade 60 and just do it.
Others say no : use polishing paper at least 600 grade.
With a ruler I found out the surfase is very flat.
Someone experience and advise?
Thank you very much!

hoggyrubber

i think i remember wildrick restoration mentioning they do flywheel refinishing and the surface is smoother than most machine shops have ability to do. i know most of the flywheel resurfacing i have had done on dry clutch setups locally are not that smooth. the fine grit crocus cloth or whatever you are thinking might work, that is, if you don't mind pulling it apart later.

Henk_Brough

Your conclusion is : Do nothing on the surfase ??
I can only make it worse.
THe surfase looks so shiny I can hardly immagion the corks has grip on it.
Thank you for your reaction.

hoggyrubber

no, that's not my conclusion at all. the best bet would be get it resurfaced by someone who is familar with these clutches while it's apart. second best would be prep it yourself by hand with the crocus cloth and hope for the best.

wano1949

If you choose to go the do it yourself route a good method to use is a DA orbital sander such as used in body work.
It provides a good flat working surface and is a lot faster.

kamzack

All of your clutch questions can answered by Doug Wildrick, Wildrick Restorations. He rebuilds all parts of the the cork clutches and has any part you may need. You don't want to resurface the flywheel with a typical machine shop method. Hudson flywheel is thinner than typical one and will be pulled down at the center and will result in surface that will be somewhat concave.
Wildrick restorations has a website.
Hope this helps,
Kim

[Deleted User]

We rebuilt Hudson clutches for years. Shiny flywheel is normal. Corks grab just fine.

[Deleted User]

Yes Indeed , and if you don't drive it every now and then you'll have just the opposite problem. They will stick to that shiny flywheel like glue,
Roger